what is my answer?

0 ⤊

Lim___ Arc Cos (1-X)____
X->0 /*X

2007-04-22 19:11:00 · 2 answers · asked by Amir Hiam 1 in Science & Mathematics ➔ Mathematics

X---->0
not
X->0/*X

2007-04-22 19:13:46 · update #1

2 answers

Lim___ Arc Cos (1-X)____

If x goes to zero:
Arc Cos (1- x) =
Arc Cos (1- 0) =
Arc Cos (1) = 0

If x goes to zero:
Arc Cos (1- x) =
Arc Cos (1- 0) =
Arc Cos (1) = 0
But 1/ 0 = ? (undetermined).
If you take the value of zero for 1/ 0, then:
Arc Cos 0 = 90°

2007-04-22 19:19:06 · answer #1 · answered by Sparks 6 · 0⤊ 0⤋

Just stick a zero in the expression to Arc Cos (1). You want the angle for which the Cosine is 1.

2007-04-23 02:16:13 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋